I have raster file and I need to convert it to line. I used GIS tools Convert Raster to Polyline but the line segment is not straight and it is divided into no of segments, isn't it possible to get ...

I'm trying to calculate the frequency of overlapping lines.
The question is pretty identical to the illustration show here Frequency of partially or fully overlapping lines
However I have no python ...

I have about 1000+ running routes which I can load into memory as polylines using latitude and longitude data captured from a running watch. From these polylines I would like to be able to identify ...

the layers are located in a postgreSQL Enterprise Geodatabase. I created a new line feature class and added it to the database and then added it to geoserver. But in geoserver it comes in as a polygon ...

I am trying to dissolve multiple lines for stream networks into individual features. The dataset contains many stream networks so a complete dissolve of the whole dataset wont do as I would like to ...

I have an image of a map representing the road networks. I have converted these road networks into a shapefile with only polylines. I want to set a distance to this road network. For e.g I know from ...

I'm trying to convert closed polylines into polygons using ogr2ogr from dxf to mssql. Here It says that polylines are converted into POLYGON if they are closed, but I always get the type LINESTRING ...

I need to spatially join 2 polylines, but the problem is that the tables have nothing in common. Also, one of the tables is 4 times as big as the other one. Essentially, what is need is to combine the ...

I've river polygon data representing the water quality. This polygon data were derived from polyline dataset according to a buffer distance in the attribute table. Unfortunately I don't have this line ...

Though i am using QGIS, yet I am not confined by tool (can use an entirely different tool or a plugin for QGIS) usage.. Only aim is to get the following:
I am reading various shapefiles in QGIS and I ...

After drawing a polyline, I would like to draw a circle from the center of this line whose radius encompasses the entire line.
For polyline's that have more than 2 points I can crudely get the center ...

I want to use Locate Features along Routes to locate the polylines below:
The routed feature is in red and I want to locate the green lines. I have buffered these but found it only locates the item ...

I have a line shapefile representing a road network. I wish to rasterize this data, with the resulting values in the raster showing the total length of the lines that fall within the raster cell.
The ...

I am working on several autocad polylines (with several vertices...) that have the exact N,E coords but now I would like to add the elevation data for every polyline's vertices from a dtm.
I thought ...

I am new to ArcGIS ArcMap. I want to calculate the average value of one point ( layer flowline ). This could be done using the value of the point and the values of the four neighbor points ( raster ), ...

I'm looking for a zigzag line symbol in QGIS. Is there perhaps an easy way to do this that I'm missing?
I have tried creating a marker line using a simple triangle marker (^) and adjusting the size of ...

I`m trying to find lines which have small distance between them and I am using ArcGIS 10 for this.
I had tried to make points at the both ends of the lines and to detect the distance between points ...

I have multiple polyline shapefiles that are non-contiguous, that is to say that each shapefile contains polylines that have breaks in them. I am looking to split each of these polyline segments into ...

I am newbie in Arcmap. I need to get the average (Velocity) values of 1000 points on my long flowline. I tried to make parallel lines on each gridpoint using the "copy Parallel" function. But there ...

I have a polyline shapefile that represent a road an a raster grid with slope values.
Is it possible to interpolate the shape file and the grid to have the average slope of the road?
I know that I can ...

Using QGIS Valmiera (MapInfo and other software is also available)
Is there a way to convert a polyline with multiple segments into a single line? I.e. by taking the first point and the last point of ...